Joomla Extension - joomlacontenteditor.net - Creation of hidden files and unintended file overwrite via rename function in Joomla Content Editor (JCE) < 2.20.2 - Improper input validation in the file rename functionality allowed an authenticated user with file management permissions to rename files to otherwise invalid names, resulting in the creation of hidden files. The issue also allowed existing files at the destination path to be unintentionally replaced.

A vulnerability in the JCE editor extension for Joomla allows the creation of new editor profiles for unauthenticated users, ultimately resulting in PHP code upload and execution.

Unrestricted file upload vulnerability in editor/extensions/browser/file.php in the JCE component before 2.0.18 for Joomla! allows remote authenticated users with the author privileges to execute arbitrary PHP code by uploading a file with a double extension, as demonstrated by .php.gif. NOTE: some of these details are obtained from third party information.

JCE Joomla Component 2.5.0 to 2.5.2 allows arbitrary file upload via a .php file extension for an image file to the /comjce/editor/libraries/classes/browser.php script.